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Technical Data
| Item | Specification | ||||
| Step Angle Accuracy | ±5% (full step,no load) | ||||
| Resistance Accuracy | ±10% | ||||
| Inductance Accuracy | ±20% | ||||
| Temperature Rise | 80℃. (rated current,2 phase on) | ||||
| Ambient Temperature | ﹣40℃~﹢50℃ | ||||
| Insulation Resistance | 100MΩMin.,500VDC | ||||
| Dielectric Strength | 600VAC,1s,1mA | ||||
| Shaft Radial Play | 0.06mmMax (300g-load) | ||||
| Shaft Axial Play | 0.08mmMax (300g-load) |
| Model NO. | Rated voltage | Current Phase | Resistance Phase | Inductance Phase | Holding Torque | Leads | Rotor Inertia | Weight | Length |
| V DC | A | Ω | mH | g-cm | g-cm2 | Kg | mm | ||
| 39ST20MF-05A | 4 | 0.5 | 8.0 | 9.5 | 900 | 4 | 10 | 0.1 | 20 |
| 35ST25MF-05A | 5 | 0.5 | 10 | 15.5 | 1200 | 4 | 11 | 0.12 | 25 |
| 39ST25MF-06A | 6 | 0.6 | 10 | 15.5 | 1600 | 4 | 11 | 0.12 | 25 |
| 39ST34MF-04A | 12 | 0.4 | 30 | 43 | 1800 | 4 | 20 | 0.18 | 34 |
| 39ST38MF-05A | 12 | 0.5 | 24 | 60.0 | 2600 | 4 | 28 | 0.2 | 38 |
| 39ST38MF-08A | 6 | 0.8 | 7.5 | 7.5 | 1700 | 6 | 28 | 0.2 | 38 |
| 39ST44MF-03A | 12 | 0.3 | 40 | 110.0 | 2500 | 4 | 36 | 0.2 | 44 |
dimension drawing
